Window mounting and construction



0. O. M KINLEY WINDOW MOUNTING AND CONSTRUCTION Sept. 27, 1955 2 Sheets-Sheet 1 Filed 00*. 3, 1951 mum .lIIHIIIU NHHnmmmmum. H

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Sept. 27, 1955 o. o. M KINLEY 2,718,942

WINDOW MOUNTING AND CONSTRUCTION Filed 00'. 3, 1951 I 2 Sheets-Sheet 2 United States Patent Ofiice 2,718,942 Patented Sept. 27, 1955 WINDOW MOUNTING AND CONSTRUCTIUN Oman 0. McKinley, Indianapolis, Ind.

Application October 3, 1951, Serial No. 249,556

10 Claims. (Cl. 189-75) The present invention relates to a window mounting and construction, and is primarily concerned with the provision of an improved mounting, including a readilyremovable frame, for sash-type. windows. The invention is particularly adaptable to storm window construction of the triple channel type, and it has been so illustrated andwill be so described, though it will be clear, from the following description, that numerous phases of the invention are equally adaptable to use in other specific relationships.

The primary object of the invention is to provide suitable framing means and sash guide construction having particular utility in the mounting of aluminum sashes, the structure being such that the material of the sashes is advantageously protected against wear, while the elements whereby the window construction is mounted in a frame may be formed of relatively inexpensive material best adapted for such service. Still further objects of the invention will appear as the description proceeds.

To'the accomplishment of the above and related objects, my invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that change may be made in the specific construction illustrated and described, so long as the scope of the appended claims is not violated.

, Fig. 1 is an external, fragmental elevation of a portion of a building showing my window mounting in place in a window frame;

Fig. 2 is a vertical section therethrough;

Fig. 3 is afragmental horizontal section taken substantially on the line 3, 3 of Fig. l and drawn to an enlarged scale; while Figs. 4, 5 and 6 are fragmental vertical sections taken substantially on the lines 4, 4, 5, 5 and 6, 6, respectively, of Fig. 1.

Referring more particularly to the drawings, I have shown, in Figs. 1 and 2, a conventional building window frame including uprights 10 and 11. With each of such uprights there is associated abracket strip indicated generally by the reference numeral 12 in Fig. 3. Such strip may be formed of any suitable material, such as sheet metal, adapted to withstand weather and possessing the requisite structural strength. Preferably, the strip 12 will have, throughout its length, the cross-sectional contour shown in detail in Fig. 3, comprising a base 13 and legs 14 and 15, the strip being of generally U shape in cross section. Pockets or grooves are formed, as indicated, in the base 13, and are suitably perforated for the reception of screws 16, 16 to be driven into the frame uprights 10 and 11.

The leg 14 comprises a section 17 perpendicular to the general plane of the base 13, a section 18 bent inwardly and preferably to a degree exceeding 90, a section 19 parallel with the section 17, a section 20 returning to the plane of the section 17, a section 21 coplanar with the section 17, a section 22 bent inwardly and substantially parallel to the plane of the base 13, and a section 23 rebent toward the base 13 and inclining somewhat toward the plane of the sections 17 and 21. The sections 18, 19 and 2t) define a dovetailed groove or socket 24 for a purpose later to become apparent, and the sections 21, 22 and 23 define a dovetailed tongue or rib for a purpose later to become apparent.

The leg 15 similarly comprises a section 25 perpendicular to the plane of the base 13, a section 26 bent inwardly and somewhat beyond perpendicularity to the plane of the section 25, a section 27 parallel to the plane of the section 25, a section 28 returning to the plane of the section 25, a section 29 coplanar with the section 25, a section 30 bent inwardly and parallel to the plane of the base 13, and a section 31 rebent toward the plane of the base 13 and inclining somewhat toward the plane of the sections 25 and 29. The sections 26, 27 and 28 define a dovetailed groove or socket 32 similar to the groove or socket 24.

A weather strip is indicated generally by the reference numeral 33, and may be formed of any suitable, resiliently-flexible sheet material, though preferably it will be formed of stainless steel, which I presently consider to be an optimum material for this service. It comprises a body 34 having one edge rebent, as at 35, to bear against the outer building wall, and to give a finished appearance to the strip. At its opposite edge, the strip 33 is rebent as at 36 into a plane comprising a chord of the bowed body 34; and then it is bent inwardly, as at 37, into a plane perpendicular to the section 36, and then rebent, through slightly more than 90, as at 38. The edge of the section 38 may be sprung outwardly, relative to the section 36, to permit said edge to pass the extremity of the section 22 of the bracket strip leg 14. As the strip 33 is pressed home, to its illustrated position, the section 38 will resiliently return to its angular relation to the plane of the section 36, thereby gripping the dovetailed rib portions 21, 22, 23 at the extremity of the leg 14 to maintain assembly between the bracket strip 13 and the weather strip 33. Obviously, the weather strip will, through its inherent resiliency, accommodate itself to reasonable variation in the relative positions of the planes of the bracket leg 14 and the building wall, to maintain a satisfactory weather seal throughout the length of the bracket strip.

A track strip, indicated generally by the reference numeral 39, is provided for association with each bracket strip 13. The track strip may be formed of any suitable material, but I presently believe stainless steel to be the optimum material for such strip. The track strip 39 will comprise a base section 40 and opposite leg portions 41 and 42 adapted, when the base 40 is registered with the base 13 of a bracket strip, to lie substantially in the planes of the bracket strip legs 14 and 15, respectively. The leg 42 terminates in a free edge 43 facing away from the plane of the base 40.

The leg 41 is rebent to provide a rearwardly-projecting extension 44 whose extremity is bent inwardly, as at 45, the construction being such that the toe 45 of the leg extension 44 may be resiliently engaged in the groove 24 to lie in frictional contact with the section 18 of the leg 14.

The portion 46 of the leg 41 forms one wall of a channel 56 further bounded by a section 47 in the plane of the base 40 and a section 48 parallel to the section 46. The strip is then bent into parallelism with the base plane, as at 49, then into parallelism with the section 49 to provide a channel wall 50. Thence it is bent againto provide a section 51 in the base plane, then outwardly to provide a section 52 parallel with the section 56, then laterally to define a section 53 parallel with the base plane, then rearwardly to provide a section 54 returning to the base plane, then laterally to provide a section 55 in the base plane, and then forwardly to define the leg 42. Thus, the strip 39 is formed to define three parallel channels 56, 57 and 58 all opening away from the bracket strip 12.

A clip 59 is rebent, at one edge, to provide a tail 60 which resiliently cooperates with the clip body 59 to embrace frictionally, and to enshroud. the leg 42 of the track strip 39 and its free edge 43. At its opposite edge, the clip 59 is rebent, as shown, to provide the resilient toe 61 engageable in the groove or socket 32 to lie in frictional contact with the section 26 thereof.

Thus, by removal of the clips 59 and disengagement of the toes from the grooves 24, the track strips 39 may be readily disconnected from the bracket strips 12, leaving the bracket strips, and the weather strips 33, permanently in position in the window frames. By this means, seasonal removal and replacement of the fastening means 16, which would inevitably result in attrition of the uprights 10 and 11 and consequent loosening of the attachment thereto, is avoided.

In Fig. 1, I have indicated, by the reference numerals 24', 33' and 39', elements corresponding to the elements 24, 33 and 39 just described, and adapted to be associated with the frame upright 10. The two mating elements 39 and 39' are joined, at their upper ends, by a strip indicated generally by the reference numeral 62, illustrated in detail in Fig. 4. The strip 62 will preferably be welded, or otherwise permanently secured, to the upper ends of the track strips 39 and 39.

The strip 62 is generally U shaped, being formed to provide a base 63 and legs 64 and 65. At its rear edge, the leg 64 is bent inwardly as at 66 and then forwardly as at 67, inclining somewhat toward the plane of the leg 64, to define a dovetailed tongue or rib for a purpose later to become apparent. At the forward edge of the leg 64, the strip is rebent to define a parallel section 68, and is then bent laterally to define a section 69 in the plane of the base 63, and then forwardly to provide a section 70 parallel with the section 68. Thence, the strip is bent laterally as at 72, rearwardly as at 73, again laterally in the plane of the base, and again forwardly as at 74. Again, the strip is bent laterally as at 76, rearwardly as at 77, laterally as at 78 and forwardly as at 79. Thus, three inwardly-facing grooves or sockets 71, and 80, registering, respectively, with the channels 56, 57 and 58, are defined. From the forward end of the section 79, the strip is bent laterally as at 81 and then rearwardly to define the leg 65. The rearward edge of the leg 65 is inturned, as at 82, and then bent back toward the base plane, as at 83.

A weather strip, indicated generally by the reference numeral 84, and similar to the weather strip 33, is associated with the leg 64 of the strip 62. Like the strip 33, the weather strip 84 comprises a bowed body 88, one

edge of which is rebent as at 89 to provide a finished appearance. At the opposite edge of the body, the strip is rebent as at 87 into a plane comprising a chord of the body 88, and is then bent inwardly as at 86 and turned back upon itself as at to provide a portion resiliently engageable with the dovetailed rib defined by the sections 66 and 67 at the extremityof the leg 64 of the strip 62.

A base strip 90 is formed to generally U shape, comprising legs 91 and 93 joined by a base 92 which is preferably waved as shown to provide spaced regions of contact with the window sill 122. A sill strip 94 comprises a leg 95 adapted to be welded to the leg 91 of the strip 90, sill surfaces 96, 97 and 98, and an upturned kerb 99 from which is turned a leg 100 parallel with the leg 95 and adapted to be welded to the leg 93 of the strip 90. The composite strip 9094 is welded or otherwise permanently secured to the lower ends of the track strips 39 and 39.

In the illustrated embodiment of the invention, three sashes, 101, 102 and 103, are suitably supported for sliding movement in the mounting just described, the sash 101 being slidably supported in the channel 56, the sash 102 in the channel 57, and the sash 103 in the channel 58. As shown, glass panes 104 and 105 are carried by the sashes 101 and 102, respectively, while the sash 103 carries a screen 106.

I consider aluminum, or an aluminum alloy, to be the optimum material for these sashes; but for several reasons, I prefer not to support the sashes in direct slidable contact with the walls of the channels 56, 57 and 58. First, aluminum, when sliding in contact with harder material, will wear badly, and will not always slide smoothly. In fact, if the sashes were provided with aluminum rails in direct contact with the walls of the channels of the stainless steel track strips 39 and 39, and if those rails were fitted to weatherproof engagement with the channel walls, movement of the sashes in the channels would be quite difficult. Additionally, it is desirable, in order to reduce manufacturing expense, to permit rather substantial tolerances in the formation of the track strips; and therefore it is desirable that there shall be a resilient, de-

formable connection between the sashes and the guide strips. Still further, it is sometimes found that window frames in buildings are slightly out of true; and for this reason, also, some resiliency in the connection between the sashes and the track strips is desirable.

Each sash 101, 102 and 103 is formed to provide a dovetailed rail 107 along each lateral edge, each such rail being bounded, at its root, by parallel, outwardly-opening grooves 108 and 109. A bearing strip 110 is associated with each such rail. The strip 110 will be formed of resiliently flexible material, and I presently believe sheet stainless steel to be optimum for this use. The cross-sectional contour of each strip 110, when in equilibrium, will be substantially circular, with the outturned edges or feet 111 and 112 of said strip resiliently pressed together. Each strip 110 is installed on its rail 107 by spreading its feet 111 and 112 and passing them over the outer edge of the rail 107 and pressing them home into the grooves 108 and 109, where they will be held by the inherent resiliency of the strip. When the strips 110, after such installation, are pressed into the channels of the channel strips 39 and 39', the strips 110 will be distorted, since the distance between the walls 50 and 52, for instance, of the channel 57 is less than the transverse dimension of the strip 110 when said strip is in equilibrium. As the strip is so distorted, of course, its region diametrically opposite the feet 111 and 112 will be forced outwardly and into resilient, frictional engagement with, for instance, the base 51 of the channel 57. Thus, a resilient, frictional contact between the strip 110 and the channel in which it is received is established in three separated regions to provide a thoroughly satisfactory weatherproof connection between the sash 102, for instance, and the track strips 39 and 39.

At its upper edge, the sash 102 is provided with a similar rail 113 with which is similarly associated a strip 114 in all respects comparable to the strip 110. When the sashes are in the relative positions shown in Fig. 5, the strip 114 attains substantially a condition of equilibrium, in which it resiliently engages the base member of the sash 101, on the one hand, and the correspondng strip 119 at the top edge of the sash 103. When, however, the sash 102 is moved to the upper end of its path, the strip 114 will be forced into the channel 75 of the strip 62, thereby being distorted to the form in which is illustrated, in Fig. 4, the corresponding strip 117 carried at the upper edge of the sash 101.

Resilient bearing strips 118, 119 and 120 are carried, as shown, at the upper and lower edges of the other sashes; and it will be clear that these resilient, deformable strips maintain sealing contact with each other, with the walls of the boundary members, or with adjacent sashes, in almost any possible relative positions of the various sashes.

In Fig. 2, I have shown my window mounting construction in the form of a storm window associated with the conventional sash mount 121. It will be obvious, however, that my window mounting might be substituted for the conventional sash mount, where it would serve its major functions equally well.

I claim as my invention:

1. In a device of the class described, a sheet metal bracket strip of generally U cross section, each leg of the U being formed to provide a laterally-outwardly-opening channel, a track strip comprising a base having a transverse dimension substantially equal to that of said bracket strip, a leg projecting in one direction from said base and provided with a toe engageable in one of said bracket strip channels, and a wall substantially coplanar with the other leg of said bracket strip when said toe is so engaged, and a clip having a portion embracing said last-named wall and a portion receivable in the other of said channels, said track strip providing a longitudinally-extending guideway.

2. A sash mount comprising a bracket strip formed to provide a base and a pair of laterally-spaced side walls, each of said side walls being provided with an outwardlyopening, longitudinally-extending pocket, and a track strip having a base and a pair of laterally-spaced side walls, one of said side walls having an extension lapping a side wall of said bracket strip when said track strip base abuts said bracket strip base, and said extension having a toe angularly related to said extension and enterable in the pocket of said bracket strip side wall, the other side wall of said track strip being substantially coplanar with said other bracket strip side wall and having a free edge facing away from said track strip base, and a clip formed at one edge to embrace said last-named track strip wall, enshrouding the free edge thereof, and formed at its opposite edge with a toe angularly related thereto and receivable in the pocket of the other side wall of said bracket strip, said track strip being formed with a sashreceiving channel opening away from its base.

3. The sash mount of claim 2 in which each pocket is dovetailed in cross section and in which each toe defines, with the element on which it is carried, an angle of less than 90, said toe-carrying elements being resiliently flexible.

4. A window mounting comprising spaced, substantially parallel side members and a header member spanning said side members, each of said side members comprising a bracket strip and a track strip, said bracket strip comprising a base and a pair of laterally-spaced side walls, one of said side walls being formed to provide an outwardlyopening, longitudinally-extending socket, and said track strip comprising a base and a pair of laterally-spaced side walls, one of said side walls having an extension lapping said one side wall of said bracket strip when said track strip base abuts said bracket strip base, said extension having a toe angularly related thereto. and enterable in said socket, said track strip being formed with a sash receiving channel opening away from its base, said socket being dovetailed in cross-section, and said toe defining, with said extension, an angle of less than 90, said extension being resiliently flexible.

5. A window mounting comprising spaced, substantially parallel side members and a header member spanning said side members, each of said side members comprising a bracket strip and a track strip, said bracket strip comprising a base and a pair of laterally-spaced side walls, one of said side walls being formed to provide an outwardly-opening, longitudinally-extending socket, and said track strip comprising a base and a pair of laterally-spaced side walls, one of said side walls having an extension lapping said one side wall of said bracket strip when said track strip base abuts said bracket strip base, said extension having a toe angularly related thereto and enterable in said socket, said track strip being formed with a sash receiving channel opening away from its base, the other side wall of said track strip being substantially coplanar with the other side wall of said bracket strip and having a free edge facing away from said bracket strip, said other side wall of said bracket strip being formed to provide an outwardly-opening, longitudinally-extending socket, said device further including a clip formed on one edge thereof to embrace said other track strip side wall, enshrouding the free edge thereof, and formed at its opposite edge with a toe angularly related thereto and receivable in the socket of said other wall of said bracket strip.

6. The device of claim 5 in which said socket of said other wall of said bracket strip is dovetailed in cross-section, and in which the toe of said clip defines therewith an angle of less than said clip being resiliently flexible.

7. A window mounting comprising spaced, substantially parallel side members and a header member spanning said side members, each of said side members comprising a bracket strip and a track strip, said bracket strip comprising a base and a pair of laterally-spaced side walls, one of said side walls being formed to provide an outwardly-opening, longitudinally-extending socket, and said track strip comprising a base and a pair of laterallyspaced side walls, one of said side walls having an extension lapping said one side wall of said bracket strip when said track strip base abuts said bracket strip base, said extension having a toe angularly related thereto and enterable in said socket, said track strip being formed with a sash receiving channel opening away from its base, said one side wall of said bracket strip being formed, along the edge thereof remote from its base, to provide a longitudinally-extending, dovetailed rib substantially parallel with the socket formed therein, said device further including a weather strip formed along one edge thereof to provide a dove-tailed socket for the reception therein of said rib, said weather strip retreating from said rib away from said track strip.

8. The device of claim 7 in which said weather strip is resiliently flexible and is .concavo-convex in crosssection, the convex surface thereof facing outwardly away from the plane of said one wall of said bracket strip.

9. A window mounting comprising spaced, substantially parallel side members and a header member spanning said side members, each of said side members comprising a bracket strip and a track strip, said bracket strip comprising a base and a pair of laterally-spaced side walls, one of said side walls being formed to provide an outwardly-opening, longtudinally-extending socket, and said track strip comprising a base and a pair of laterally-spaced side walls, one of said side walls having an extension lapping said one side wall of said bracket strip when said track strip base abuts said bracket strip base, said extension having a toe angularly related thereto and enterable in said socket, said track strip being formed with a sash receiving channel opening away from its base, said header member comprising a base formed with a sash receiving channel, and a pair of laterally spaced side walls, one of said side walls lying substantially in the plane of said one side wall of said track strip and being formed to provide a longitudinally-extending, dovetailed rib, along the edge thereof remote from said base, said device further including a weather strip formed along one edge thereof to provide a dove-tailed socket for the reception therein of said rib, said weather strip retreating from said rib and away from said base.

10. The device of claim 9 in which said weather strip is resiliently flexible and is concavo-convex in cross section, the convex surface thereof facing outwardly away from the plane of said one side wall of said header member.

References Cited in the file of this patent UNITED STATES PATENTS 1,542,786 Fromhold June 16, 1925 1,721,770 Cotton July 23, 1929 2,135,680 Sharp Nov. 8, 1938 2,304,423 Schiller Dec. 3, 1942 2,467,511 Van Fleet Apr. 19, 1949 2,605,870 Hansen Aug. 5, 1952 2,613,403 Gardner, Jr Oct. 14, 1952 2,679,665 Beard June 1, 1954 

